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Trigonometry
Question

Number 8 please show workEXERCISES Classify the tr...

Number 8 please show work

EXERCISES Classify the triangle formed by the side lengths as acute, right, or obtuse. 

Answer

Obtuse Scalene Triangle Side \( a = 2 \) Side \( b = 4 \) Side \( c = 5 \) Angle \( \angle A = 22.332 ^ { \circ } = 22 ^ { \circ } 19 ^ { \prime } 54 " = 0.38976 rad \) 

Angle \( \angle B = 49.458 ^ { \circ } = 49 ^ { \circ } 27 ^ { \prime } 30 ^ { \prime \prime } = 0.86321 rad \) 

Angle \( \angle C = 108.21 ^ { \circ } = 108 ^ { \circ } 12 ^ { \prime } 36 ^ { \prime \prime } = 1.88862 rad \) 

Area \( = 3.79967 \) 

Perimeter \( p = 11 \) 

Semiperimeter \( s = 5.5\) 

Solution
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